Hi all, I recently acquired an HP-12C with a serial number beginning with 2031A! From information found elsewhere on this site that serial number makes it a very early production model of the Voyager series.
Question: are there any known errors in the numbering schemes used by HP?
As far as I can tell the calculator is authentic. I have several early version 12Cs and the one in question shares all characteristics with them. There are no signs that it has been hampered with. The serial number would for any Voyager model indicate a very early production model.
Opinions?
Regards,
Arne